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From: Jiri Olsa <jolsa@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
	Ingo Molnar <mingo@kernel.org>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>
Subject: [PATCH 1/5] x86/insn-eval: Remove regs arg from pt_regs_offset
Date: Mon, 17 Nov 2025 10:31:33 +0100	[thread overview]
Message-ID: <20251117093137.572132-2-jolsa@kernel.org> (raw)
In-Reply-To: <20251117093137.572132-1-jolsa@kernel.org>

It's not used, pt_regs_offset returns only offset to struct pt_regs,
not the actual register values.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 arch/x86/include/asm/insn-eval.h | 2 +-
 arch/x86/lib/insn-eval.c         | 4 ++--
 arch/x86/mm/extable.c            | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/insn-eval.h b/arch/x86/include/asm/insn-eval.h
index 4733e9064ee5..6b592040bda4 100644
--- a/arch/x86/include/asm/insn-eval.h
+++ b/arch/x86/include/asm/insn-eval.h
@@ -15,7 +15,7 @@
 #define INSN_CODE_SEG_OPND_SZ(params) (params & 0xf)
 #define INSN_CODE_SEG_PARAMS(oper_sz, addr_sz) (oper_sz | (addr_sz << 4))
 
-int pt_regs_offset(struct pt_regs *regs, int regno);
+int pt_regs_offset(int regno);
 
 bool insn_has_rep_prefix(struct insn *insn);
 void __user *insn_get_addr_ref(struct insn *insn, struct pt_regs *regs);
diff --git a/arch/x86/lib/insn-eval.c b/arch/x86/lib/insn-eval.c
index e03eeec55cfe..7b46eb717066 100644
--- a/arch/x86/lib/insn-eval.c
+++ b/arch/x86/lib/insn-eval.c
@@ -437,7 +437,7 @@ static const int pt_regoff[] = {
 #endif
 };
 
-int pt_regs_offset(struct pt_regs *regs, int regno)
+int pt_regs_offset(int regno)
 {
 	if ((unsigned)regno < ARRAY_SIZE(pt_regoff))
 		return pt_regoff[regno];
@@ -527,7 +527,7 @@ static int get_reg_offset(struct insn *insn, struct pt_regs *regs,
 	if (regno < 0)
 		return regno;
 
-	return pt_regs_offset(regs, regno);
+	return pt_regs_offset(regno);
 }
 
 /**
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
index 2fdc1f1f5adb..b9a34de9181d 100644
--- a/arch/x86/mm/extable.c
+++ b/arch/x86/mm/extable.c
@@ -15,7 +15,7 @@
 
 static inline unsigned long *pt_regs_nr(struct pt_regs *regs, int nr)
 {
-	int reg_offset = pt_regs_offset(regs, nr);
+	int reg_offset = pt_regs_offset(nr);
 	static unsigned long __dummy;
 
 	if (WARN_ON_ONCE(reg_offset < 0))
-- 
2.51.1


  reply	other threads:[~2025-11-17  9:32 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-17  9:31 [PATCH 1/5] x86/insn-eval: Remove unused regs arg some functions Jiri Olsa
2025-11-17  9:31 ` Jiri Olsa [this message]
2025-11-17  9:31 ` [PATCH 2/5] x86/insn-eval: Remove regs arg from get_reg_offset Jiri Olsa
2025-11-17  9:31 ` [PATCH 3/5] x86/insn-eval: Remove regs arg from insn_get_modrm_rm_off Jiri Olsa
2025-11-17  9:31 ` [PATCH 4/5] x86/insn-eval: Remove regs arg from insn_get_modrm_reg_off Jiri Olsa
2025-11-17  9:31 ` [PATCH 5/5] x86/insn-eval: Remove regs arg from get_reg_offset_16 Jiri Olsa
2025-11-18  8:47 ` [PATCH 1/5] x86/insn-eval: Remove unused regs arg some functions Peter Zijlstra

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